1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.mitosis.operation;
21
22
23 import org.apache.directory.mitosis.common.CSN;
24 import org.apache.directory.server.core.CoreSession;
25 import org.apache.directory.server.core.DirectoryService;
26 import org.apache.directory.server.core.entry.ServerAttribute;
27 import org.apache.directory.server.core.entry.ServerEntry;
28 import org.apache.directory.server.core.interceptor.context.ModifyOperationContext;
29 import org.apache.directory.server.core.partition.PartitionNexus;
30 import org.apache.directory.server.schema.registries.Registries;
31 import org.apache.directory.shared.ldap.entry.EntryAttribute;
32 import org.apache.directory.shared.ldap.entry.Modification;
33 import org.apache.directory.shared.ldap.entry.ModificationOperation;
34 import org.apache.directory.shared.ldap.name.LdapDN;
35
36 import java.util.List;
37
38
39 /**
40 * An {@link Operation} that replaces an attribute in an entry.
41 *
42 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
43 */
44 public class ReplaceAttributeOperation extends AttributeOperation
45 {
46 /**
47 * Declares the Serial Version Uid.
48 *
49 * @see <a
50 * href="http://c2.com/cgi/wiki?AlwaysDeclareSerialVersionUid">Always
51 * Declare Serial Version Uid</a>
52 */
53 private static final long serialVersionUID = -6573196586521610472L;
54
55
56 /**
57 * Creates a new operation that replaces the specified attribute. This
58 * constructor will not be visible out of this package, as it is
59 * only used for the deserialization process.
60 *
61 * @param attribute an attribute to replace
62 */
63 /** No qualifier*/ ReplaceAttributeOperation( Registries registries )
64 {
65 super( registries, OperationType.REPLACE_ATTRIBUTE );
66 }
67
68
69 /**
70 * Creates a new operation that replaces the specified attribute.
71 *
72 * @param attribute an attribute to replace
73 * @param csn The operation CSN
74 * @param dn The associated DN
75 */
76 public ReplaceAttributeOperation( Registries registries, CSN csn, LdapDN dn, ServerAttribute attribute )
77 {
78 super( registries, OperationType.REPLACE_ATTRIBUTE, csn, dn, attribute );
79 }
80
81
82 /**
83 * Inject the modified attribute into the server.
84 *
85 * @param nexus the partition which will be modified
86 * @param coreSession the current session
87 */
88 protected void execute1( PartitionNexus nexus, CoreSession coreSession ) throws Exception
89 {
90 DirectoryService ds = coreSession.getDirectoryService();
91 ServerEntry serverEntry = ds.newEntry( LdapDN.EMPTY_LDAPDN );
92 EntryAttribute attribute = getAttribute();
93 serverEntry.put( attribute );
94 List<Modification> items = ModifyOperationContext.createModItems( serverEntry,
95 ModificationOperation.REPLACE_ATTRIBUTE );
96
97 nexus.modify( new ModifyOperationContext( coreSession, getDn(), items ) );
98 }
99
100
101 /**
102 * @see Object#toString()
103 */
104 public String toString()
105 {
106 return super.toString() + ".replace( " + getAttribute() + " )";
107 }
108 }